Air quality
Air quality in Nusantara today
Updated
Unhealthy for Sensitive Groups (US AQI 122) People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. Model estimate for Mon, Oct 26, 10:00 am (02:00 UTC).
Live AQI, PM2.5, PM10 and ozone for Nusantara, East Kalimantan, Indonesia, with a 48-hour forecast and the best time to be outside.
- US AQI now
- 122 Unhealthy for Sensitive Groups
- PM2.5
- 24 µg/m³ 1.6× WHO 24-h guideline
- PM10
- 26 µg/m³
- Ozone
- 78 µg/m³
- Dominant pollutant
- PM2.5 sub-index 122
- Best hour today
- 9:00 pm AQI 86
- European AQI
- 45
Air quality in Nusantara right now
Right now the modelled US Air Quality Index for Nusantara, East Kalimantan, Indonesia is 122, which falls in the "Unhealthy for Sensitive Groups" band (up to 150). People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors.
The index is driven mainly by PM2.5, whose own sub-index is 122. Fine and coarse particles come from traffic, heating, industry, dust and smoke; they build up on calm nights and clear when wind or rain arrives.
PM2.5 is 24 µg/m³, 1.6 times the WHO 24-hour guideline of 15 µg/m³; PM10 is 26 µg/m³ against a guideline of 45; ozone is 78 µg/m³ (below the WHO 8-hour level of 100); nitrogen dioxide is 1.1 µg/m³ (below the 24-hour guideline of 25).
Also this hour: UV index 6 (high: sun protection advised), carbon monoxide 405 µg/m³.
NASA FIRMS shows 239 fire hotspots within 300 km in the last day (nearest about 25 km), but particle levels are not elevated enough to point to smoke right now.
Nusantara AQI forecast: next 48 hours
Over the next 24 hours the AQI is forecast to range from 64 around Tue 10:00 am to 122 around Mon 10:00 am, from "Moderate" at best to "Unhealthy for Sensitive Groups" at worst.
The following day is expected to be cleaner, averaging about 53 against 89 for the next 24 hours.
| Local time (Asia/Makassar) | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Mon 10:00 am | 122 | Unhealthy for Sensitive Groups | 24.2 | 26 | 78 |
| Mon 1:00 pm | 109 | Unhealthy for Sensitive Groups | 24.4 | 27 | 89 |
| Mon 4:00 pm | 99 | Moderate | 26 | 29 | 82 |
| Mon 7:00 pm | 91 | Moderate | 21.9 | 24 | 53 |
| Mon 10:00 pm | 85 | Moderate | 18.8 | 21 | 44 |
| Tue 1:00 am | 80 | Moderate | 10 | 11 | 44 |
| Tue 4:00 am | 76 | Moderate | 5 | 5 | 43 |
| Tue 7:00 am | 70 | Moderate | 4.5 | 5 | 47 |
| Tue 10:00 am | 64 | Moderate | 8 | 9 | 73 |
| Tue 1:00 pm | 60 | Moderate | 7.4 | 8 | 83 |
| Tue 4:00 pm | 56 | Moderate | 8.8 | 10 | 86 |
| Tue 7:00 pm | 52 | Moderate | 10.4 | 11 | 61 |
| Tue 10:00 pm | 50 | Good | 11.7 | 13 | 42 |
| Wed 1:00 am | 49 | Good | 12.4 | 13 | 38 |
| Wed 4:00 am | 49 | Good | 9.9 | 11 | 22 |
| Wed 7:00 am | 51 | Moderate | 10.1 | 11 | 46 |
| Wed 10:00 am | 51 | Moderate | 8.2 | 9 | 70 |
Every third hour of the CAMS forecast via Open-Meteo. US AQI uses rolling averages (24 h for particles, 8 h for ozone), so it moves more slowly than the hourly concentrations.
Best time to be outside in Nusantara today
Between 6 am and 9 pm local time, the cleanest air today is forecast around 9:00 pm (AQI 86, Moderate) and the worst around 10:00 am (AQI 122). That is a swing of 36 points, so a run or walk around 9:00 pm is noticeably better.
Nusantara vs the rest of Indonesia
Across 80 Indonesia cities we track, the average US AQI right now is 124 (Unhealthy for Sensitive Groups). Nusantara at 122 is about average.
For context, the median across 3,909 cities worldwide is 57.
Air quality in cities near Nusantara
| City | Distance | US AQI | Category | PM2.5 µg/m³ |
|---|---|---|---|---|
| Balikpapan | 35 km | 90 | Moderate | 28.9 |
| Samarinda | 72 km | 103 | Unhealthy for Sensitive Groups | 22.4 |
| Tanjung | 197 km | 120 | Unhealthy for Sensitive Groups | 18.5 |
| Palangkaraya | 339 km | 500 | Hazardous | 302.7 |
| Martapura | 340 km | 153 | Unhealthy | 46.6 |
| Banjarbaru | 344 km | 153 | Unhealthy | 46.6 |
| Banjarmasin | 351 km | 329 | Hazardous | 182.1 |
| Palu | 352 km | 135 | Unhealthy for Sensitive Groups | 46.4 |
Model vs measured
We found no measured PM2.5 sensor cell within 25 km of Nusantara, so the numbers on this page are model estimates. Models capture regional pollution well but can miss very local sources such as a busy road or a nearby fire.
Advice for sensitive groups
At 122, children, older adults, pregnant people and anyone with asthma, COPD or heart disease should limit time outdoors, especially strenuous activity. A well-fitted N95/FFP2 mask cuts particle exposure; it does not filter ozone.
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Values on this page are modelled by CAMS (Copernicus) and served by Open-Meteo; they are estimates for the area around the city centre, not readings from an official monitor.
Nearby cities
More for Nusantara
Air quality elsewhere
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS), NASA FIRMS.